Bercovici Research Research interests: Geophysical and geological fluid dynamics Continuum mechanics Multiphase and multicomponent physics; Shear localization and damage theory Granular and grained continua Nonlinear science, self-organization Research topics: Mantle convection Lithosphere dynamics and origin of plate tectonics Water and volatiles in the mantle and geochemical evolution of the Earth Hotspots, mantle plumes Volcanic flows and eruptions Research Sampler: The transition-zone water-filter model for mantle convection and geochemical ``unmixing" (see for example paper 26). Plate generation from non-Newtonian lithosphere-mantle flow (see review papers 30 and 44). Formation of discrete and alternating hotspot islands (see papers 40, 43, 45). Two-phase compaction and damage [don't be impressed, it's just a cartoon, and it was drawn by the talented Brookes Bayes, not me] (see papers 24, 27,31, 34, 35, 36) . The Yale-Amity Geophysical Annex (YAGA)